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5a4bf4f369
godot/modules/mono/mono_gd/gd_mono_marshal.h
Ignacio Etcheverry 5a4bf4f369 C#: Marshalling support for IEnumerable<> and IDictionary<,> 
Also fixed the hint string of exported members.
2019-05-18 19:39:56 +02:00

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/*************************************************************************/
/* gd_mono_marshal.h */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2019 Godot Engine contributors (cf. AUTHORS.md) */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#ifndef GDMONOMARSHAL_H
#define GDMONOMARSHAL_H
#include "core/variant.h"
#include "gd_mono.h"
#include "gd_mono_utils.h"
namespace GDMonoMarshal {
template <typename T>
T unbox(MonoObject *p_obj) {
return *(T *)mono_object_unbox(p_obj);
}
#define BOX_DOUBLE(x) mono_value_box(mono_domain_get(), CACHED_CLASS_RAW(double), &x)
#define BOX_FLOAT(x) mono_value_box(mono_domain_get(), CACHED_CLASS_RAW(float), &x)
#define BOX_INT64(x) mono_value_box(mono_domain_get(), CACHED_CLASS_RAW(int64_t), &x)
#define BOX_INT32(x) mono_value_box(mono_domain_get(), CACHED_CLASS_RAW(int32_t), &x)
#define BOX_INT16(x) mono_value_box(mono_domain_get(), CACHED_CLASS_RAW(int16_t), &x)
#define BOX_INT8(x) mono_value_box(mono_domain_get(), CACHED_CLASS_RAW(int8_t), &x)
#define BOX_UINT64(x) mono_value_box(mono_domain_get(), CACHED_CLASS_RAW(uint64_t), &x)
#define BOX_UINT32(x) mono_value_box(mono_domain_get(), CACHED_CLASS_RAW(uint32_t), &x)
#define BOX_UINT16(x) mono_value_box(mono_domain_get(), CACHED_CLASS_RAW(uint16_t), &x)
#define BOX_UINT8(x) mono_value_box(mono_domain_get(), CACHED_CLASS_RAW(uint8_t), &x)
#define BOX_BOOLEAN(x) mono_value_box(mono_domain_get(), CACHED_CLASS_RAW(bool), &x)
#define BOX_PTR(x) mono_value_box(mono_domain_get(), CACHED_CLASS_RAW(IntPtr), x)
#define BOX_ENUM(m_enum_class, x) mono_value_box(mono_domain_get(), m_enum_class, &x)
Variant::Type managed_to_variant_type(const ManagedType &p_type);
bool try_get_array_element_type(const ManagedType &p_array_type, ManagedType &r_elem_type);
bool try_get_dictionary_key_value_types(const ManagedType &p_dictionary_type, ManagedType &r_key_type, ManagedType &r_value_type);
// String
String mono_to_utf8_string(MonoString *p_mono_string);
String mono_to_utf16_string(MonoString *p_mono_string);
_FORCE_INLINE_ String mono_string_to_godot_not_null(MonoString *p_mono_string) {
if (sizeof(CharType) == 2)
return mono_to_utf16_string(p_mono_string);
return mono_to_utf8_string(p_mono_string);
}
_FORCE_INLINE_ String mono_string_to_godot(MonoString *p_mono_string) {
if (p_mono_string == NULL)
return String();
return mono_string_to_godot_not_null(p_mono_string);
}
_FORCE_INLINE_ MonoString *mono_from_utf8_string(const String &p_string) {
return mono_string_new(mono_domain_get(), p_string.utf8().get_data());
}
_FORCE_INLINE_ MonoString *mono_from_utf16_string(const String &p_string) {
return mono_string_from_utf16((mono_unichar2 *)p_string.c_str());
}
_FORCE_INLINE_ MonoString *mono_string_from_godot(const String &p_string) {
if (sizeof(CharType) == 2)
return mono_from_utf16_string(p_string);
return mono_from_utf8_string(p_string);
}
// Variant
MonoObject *variant_to_mono_object(const Variant *p_var, const ManagedType &p_type);
MonoObject *variant_to_mono_object(const Variant *p_var);
_FORCE_INLINE_ MonoObject *variant_to_mono_object(const Variant &p_var) {
return variant_to_mono_object(&p_var);
}
_FORCE_INLINE_ MonoObject *variant_to_mono_object(const Variant &p_var, const ManagedType &p_type) {
return variant_to_mono_object(&p_var, p_type);
}
Variant mono_object_to_variant(MonoObject *p_obj);
// Array
MonoArray *Array_to_mono_array(const Array &p_array);
Array mono_array_to_Array(MonoArray *p_array);
// PoolIntArray
MonoArray *PoolIntArray_to_mono_array(const PoolIntArray &p_array);
PoolIntArray mono_array_to_PoolIntArray(MonoArray *p_array);
// PoolByteArray
MonoArray *PoolByteArray_to_mono_array(const PoolByteArray &p_array);
PoolByteArray mono_array_to_PoolByteArray(MonoArray *p_array);
// PoolRealArray
MonoArray *PoolRealArray_to_mono_array(const PoolRealArray &p_array);
PoolRealArray mono_array_to_PoolRealArray(MonoArray *p_array);
// PoolStringArray
MonoArray *PoolStringArray_to_mono_array(const PoolStringArray &p_array);
PoolStringArray mono_array_to_PoolStringArray(MonoArray *p_array);
// PoolColorArray
MonoArray *PoolColorArray_to_mono_array(const PoolColorArray &p_array);
PoolColorArray mono_array_to_PoolColorArray(MonoArray *p_array);
// PoolVector2Array
MonoArray *PoolVector2Array_to_mono_array(const PoolVector2Array &p_array);
PoolVector2Array mono_array_to_PoolVector2Array(MonoArray *p_array);
// PoolVector3Array
MonoArray *PoolVector3Array_to_mono_array(const PoolVector3Array &p_array);
PoolVector3Array mono_array_to_PoolVector3Array(MonoArray *p_array);
// Structures
namespace InteropLayout {
enum {
MATCHES_float = (sizeof(float) == sizeof(uint32_t)),
MATCHES_double = (sizeof(double) == sizeof(uint64_t)),
#ifdef REAL_T_IS_DOUBLE
MATCHES_real_t = (sizeof(real_t) == sizeof(uint64_t)),
#else
MATCHES_real_t = (sizeof(real_t) == sizeof(uint32_t)),
#endif
MATCHES_Vector2 = (MATCHES_real_t && (sizeof(Vector2) == (sizeof(real_t) * 2)) &&
offsetof(Vector2, x) == (sizeof(real_t) * 0) &&
offsetof(Vector2, y) == (sizeof(real_t) * 1)),
MATCHES_Rect2 = (MATCHES_Vector2 && (sizeof(Rect2) == (sizeof(Vector2) * 2)) &&
offsetof(Rect2, position) == (sizeof(Vector2) * 0) &&
offsetof(Rect2, size) == (sizeof(Vector2) * 1)),
MATCHES_Transform2D = (MATCHES_Vector2 && (sizeof(Transform2D) == (sizeof(Vector2) * 3))), // No field offset required, it stores an array
MATCHES_Vector3 = (MATCHES_real_t && (sizeof(Vector3) == (sizeof(real_t) * 3)) &&
offsetof(Vector3, x) == (sizeof(real_t) * 0) &&
offsetof(Vector3, y) == (sizeof(real_t) * 1) &&
offsetof(Vector3, z) == (sizeof(real_t) * 2)),
MATCHES_Basis = (MATCHES_Vector3 && (sizeof(Basis) == (sizeof(Vector3) * 3))), // No field offset required, it stores an array
MATCHES_Quat = (MATCHES_real_t && (sizeof(Quat) == (sizeof(real_t) * 4)) &&
offsetof(Quat, x) == (sizeof(real_t) * 0) &&
offsetof(Quat, y) == (sizeof(real_t) * 1) &&
offsetof(Quat, z) == (sizeof(real_t) * 2) &&
offsetof(Quat, w) == (sizeof(real_t) * 3)),
MATCHES_Transform = (MATCHES_Basis && MATCHES_Vector3 && (sizeof(Transform) == (sizeof(Basis) + sizeof(Vector3))) &&
offsetof(Transform, basis) == 0 &&
offsetof(Transform, origin) == sizeof(Basis)),
MATCHES_AABB = (MATCHES_Vector3 && (sizeof(AABB) == (sizeof(Vector3) * 2)) &&
offsetof(AABB, position) == (sizeof(Vector3) * 0) &&
offsetof(AABB, size) == (sizeof(Vector3) * 1)),
MATCHES_Color = (MATCHES_float && (sizeof(Color) == (sizeof(float) * 4)) &&
offsetof(Color, r) == (sizeof(float) * 0) &&
offsetof(Color, g) == (sizeof(float) * 1) &&
offsetof(Color, b) == (sizeof(float) * 2) &&
offsetof(Color, a) == (sizeof(float) * 3)),
MATCHES_Plane = (MATCHES_Vector3 && MATCHES_real_t && (sizeof(Plane) == (sizeof(Vector3) + sizeof(real_t))) &&
offsetof(Plane, normal) == 0 &&
offsetof(Plane, d) == sizeof(Vector3))
};
// In the future we may force this if we want to ref return these structs
#ifdef GD_MONO_FORCE_INTEROP_STRUCT_COPY
/* clang-format off */
GD_STATIC_ASSERT(MATCHES_Vector2 && MATCHES_Rect2 && MATCHES_Transform2D && MATCHES_Vector3 &&
MATCHES_Basis && MATCHES_Quat && MATCHES_Transform && MATCHES_AABB && MATCHES_Color &&MATCHES_Plane);
/* clang-format on */
#endif
} // namespace InteropLayout
#pragma pack(push, 1)
struct M_Vector2 {
real_t x, y;
static _FORCE_INLINE_ Vector2 convert_to(const M_Vector2 &p_from) {
return Vector2(p_from.x, p_from.y);
}
static _FORCE_INLINE_ M_Vector2 convert_from(const Vector2 &p_from) {
M_Vector2 ret = { p_from.x, p_from.y };
return ret;
}
};
struct M_Rect2 {
M_Vector2 position;
M_Vector2 size;
static _FORCE_INLINE_ Rect2 convert_to(const M_Rect2 &p_from) {
return Rect2(M_Vector2::convert_to(p_from.position),
M_Vector2::convert_to(p_from.size));
}
static _FORCE_INLINE_ M_Rect2 convert_from(const Rect2 &p_from) {
M_Rect2 ret = { M_Vector2::convert_from(p_from.position), M_Vector2::convert_from(p_from.size) };
return ret;
}
};
struct M_Transform2D {
M_Vector2 elements[3];
static _FORCE_INLINE_ Transform2D convert_to(const M_Transform2D &p_from) {
return Transform2D(p_from.elements[0].x, p_from.elements[0].y,
p_from.elements[1].x, p_from.elements[1].y,
p_from.elements[2].x, p_from.elements[2].y);
}
static _FORCE_INLINE_ M_Transform2D convert_from(const Transform2D &p_from) {
M_Transform2D ret = {
M_Vector2::convert_from(p_from.elements[0]),
M_Vector2::convert_from(p_from.elements[1]),
M_Vector2::convert_from(p_from.elements[2])
};
return ret;
}
};
struct M_Vector3 {
real_t x, y, z;
static _FORCE_INLINE_ Vector3 convert_to(const M_Vector3 &p_from) {
return Vector3(p_from.x, p_from.y, p_from.z);
}
static _FORCE_INLINE_ M_Vector3 convert_from(const Vector3 &p_from) {
M_Vector3 ret = { p_from.x, p_from.y, p_from.z };
return ret;
}
};
struct M_Basis {
M_Vector3 elements[3];
static _FORCE_INLINE_ Basis convert_to(const M_Basis &p_from) {
return Basis(M_Vector3::convert_to(p_from.elements[0]),
M_Vector3::convert_to(p_from.elements[1]),
M_Vector3::convert_to(p_from.elements[2]));
}
static _FORCE_INLINE_ M_Basis convert_from(const Basis &p_from) {
M_Basis ret = {
M_Vector3::convert_from(p_from.elements[0]),
M_Vector3::convert_from(p_from.elements[1]),
M_Vector3::convert_from(p_from.elements[2])
};
return ret;
}
};
struct M_Quat {
real_t x, y, z, w;
static _FORCE_INLINE_ Quat convert_to(const M_Quat &p_from) {
return Quat(p_from.x, p_from.y, p_from.z, p_from.w);
}
static _FORCE_INLINE_ M_Quat convert_from(const Quat &p_from) {
M_Quat ret = { p_from.x, p_from.y, p_from.z, p_from.w };
return ret;
}
};
struct M_Transform {
M_Basis basis;
M_Vector3 origin;
static _FORCE_INLINE_ Transform convert_to(const M_Transform &p_from) {
return Transform(M_Basis::convert_to(p_from.basis), M_Vector3::convert_to(p_from.origin));
}
static _FORCE_INLINE_ M_Transform convert_from(const Transform &p_from) {
M_Transform ret = { M_Basis::convert_from(p_from.basis), M_Vector3::convert_from(p_from.origin) };
return ret;
}
};
struct M_AABB {
M_Vector3 position;
M_Vector3 size;
static _FORCE_INLINE_ AABB convert_to(const M_AABB &p_from) {
return AABB(M_Vector3::convert_to(p_from.position), M_Vector3::convert_to(p_from.size));
}
static _FORCE_INLINE_ M_AABB convert_from(const AABB &p_from) {
M_AABB ret = { M_Vector3::convert_from(p_from.position), M_Vector3::convert_from(p_from.size) };
return ret;
}
};
struct M_Color {
float r, g, b, a;
static _FORCE_INLINE_ Color convert_to(const M_Color &p_from) {
return Color(p_from.r, p_from.g, p_from.b, p_from.a);
}
static _FORCE_INLINE_ M_Color convert_from(const Color &p_from) {
M_Color ret = { p_from.r, p_from.g, p_from.b, p_from.a };
return ret;
}
};
struct M_Plane {
M_Vector3 normal;
real_t d;
static _FORCE_INLINE_ Plane convert_to(const M_Plane &p_from) {
return Plane(M_Vector3::convert_to(p_from.normal), p_from.d);
}
static _FORCE_INLINE_ M_Plane convert_from(const Plane &p_from) {
M_Plane ret = { M_Vector3::convert_from(p_from.normal), p_from.d };
return ret;
}
};
#pragma pack(pop)
#define DECL_TYPE_MARSHAL_TEMPLATES(m_type) \
template <int> \
_FORCE_INLINE_ m_type marshalled_in_##m_type##_impl(const M_##m_type *p_from); \
\
template <> \
_FORCE_INLINE_ m_type marshalled_in_##m_type##_impl<0>(const M_##m_type *p_from) { \
return M_##m_type::convert_to(*p_from); \
} \
\
template <> \
_FORCE_INLINE_ m_type marshalled_in_##m_type##_impl<1>(const M_##m_type *p_from) { \
return *reinterpret_cast<const m_type *>(p_from); \
} \
\
_FORCE_INLINE_ m_type marshalled_in_##m_type(const M_##m_type *p_from) { \
return marshalled_in_##m_type##_impl<InteropLayout::MATCHES_##m_type>(p_from); \
} \
\
template <int> \
_FORCE_INLINE_ M_##m_type marshalled_out_##m_type##_impl(const m_type &p_from); \
\
template <> \
_FORCE_INLINE_ M_##m_type marshalled_out_##m_type##_impl<0>(const m_type &p_from) { \
return M_##m_type::convert_from(p_from); \
} \
\
template <> \
_FORCE_INLINE_ M_##m_type marshalled_out_##m_type##_impl<1>(const m_type &p_from) { \
return *reinterpret_cast<const M_##m_type *>(&p_from); \
} \
\
_FORCE_INLINE_ M_##m_type marshalled_out_##m_type(const m_type &p_from) { \
return marshalled_out_##m_type##_impl<InteropLayout::MATCHES_##m_type>(p_from); \
}
DECL_TYPE_MARSHAL_TEMPLATES(Vector2)
DECL_TYPE_MARSHAL_TEMPLATES(Rect2)
DECL_TYPE_MARSHAL_TEMPLATES(Transform2D)
DECL_TYPE_MARSHAL_TEMPLATES(Vector3)
DECL_TYPE_MARSHAL_TEMPLATES(Basis)
DECL_TYPE_MARSHAL_TEMPLATES(Quat)
DECL_TYPE_MARSHAL_TEMPLATES(Transform)
DECL_TYPE_MARSHAL_TEMPLATES(AABB)
DECL_TYPE_MARSHAL_TEMPLATES(Color)
DECL_TYPE_MARSHAL_TEMPLATES(Plane)
#define MARSHALLED_IN(m_type, m_from_ptr) (GDMonoMarshal::marshalled_in_##m_type(m_from_ptr))
#define MARSHALLED_OUT(m_type, m_from) (GDMonoMarshal::marshalled_out_##m_type(m_from))
} // namespace GDMonoMarshal
#endif // GDMONOMARSHAL_H
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